802 hedge funds and large institutions have $24B invested in Ameren in 2025 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 319 increasing their positions, 225 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
802
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$15.4M
Puts
$4.12M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
TI
101
Trexquant Investment
Connecticut
$15.6M
State of Wisconsin Investment Board
102
State of Wisconsin Investment Board
Wisconsin
$15.6M
TD Asset Management
103
TD Asset Management
Ontario, Canada
$15.6M
MAM
104
Martingale Asset Management
Massachusetts
$15.5M
MGIA
105
Moneta Group Investment Advisors
Missouri
$15.2M
LPL Financial
106
LPL Financial
California
$15.1M
CIBC Asset Management
107
CIBC Asset Management
Ontario, Canada
$14.7M
PCM
108
Polymer Capital Management
New York
$14.6M
Chevy Chase Trust
109
Chevy Chase Trust
Maryland
$14.4M
QCM
110
Quantinno Capital Management
New York
$14.2M
Allianz Asset Management
111
Allianz Asset Management
Germany
$14.1M
Aberdeen Group
112
Aberdeen Group
United Kingdom
$13.8M
HF
113
HRT Financial
New York
$13.1M
American Century Companies
114
American Century Companies
Missouri
$12.9M
Treasurer of the State of North Carolina
115
Treasurer of the State of North Carolina
North Carolina
$12.7M
EIP
116
Epoch Investment Partners
New York
$12.6M
KeyBank National Association
117
KeyBank National Association
Ohio
$12.2M
Creative Planning
118
Creative Planning
Kansas
$12.2M
State of Tennessee, Department of Treasury
119
State of Tennessee, Department of Treasury
Tennessee
$11.7M
Toronto Dominion Bank
120
Toronto Dominion Bank
Ontario, Canada
$11.7M
New York State Common Retirement Fund
121
New York State Common Retirement Fund
New York
$11.7M
IMRF
122
Illinois Municipal Retirement Fund
Illinois
$11.3M
BGM
123
Burkehill Global Management
New York
$10.4M
GLA
124
Great Lakes Advisors
Illinois
$10.3M
VanEck Associates
125
VanEck Associates
New York
$10.3M